Nvidia and Robotics w/ Barrett Williams – XDA:DevCon 2014

Robotics continues to dominate our videos from this years XDA:DevCon 2014 in … more

Speed Up Deodexing with JoelDroid Batch Deodexer

Android 5.0 Lollipop brings many under-the-hood changes like changing the default compiler … more

Top 5 Apps for 2014 + Top Xposed Mod of 2014 – XDA TV

Its that time of year where you look back and remember the things that happened … more

NVIDIA SHIELD Tablet Gets Android 5.0.1, OTA Available

The NVIDIA SHIELD Tablet is the latest Android-powered device released by famed GPU … more

Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

[Q] HD2 Phantom touches crisis

OP Phantoml337

30th December 2012, 07:14 PM   |  #1  
OP Member
Thanks Meter: 0
 
66 posts
Join Date:Joined: Feb 2010
Donate to Me
More
Hi, I've been suffering from randomly occurring phantom touches, seemingly without a trigger. Sometimes, immediately after I turn my screen on, digitizer starts going nuts and registers hundreds of touches everywhere, often to the point of crashing the system. I have tried to ensure better grounding by applying graphite to the battery cover contacts, but the issue got fixed only temporarily. Wiping the whole screen, bottom to top, with my skin stops the issue. I'm currently running a 4.1.2 Pacman 1.2a Android on an European HD2. Thanks for any kind of help or advice.
31st December 2012, 06:43 AM   |  #2  
Junior Member
Thanks Meter: 0
 
13 posts
Join Date:Joined: Nov 2010
Quote:
Originally Posted by Phantoml337

Hi, I've been suffering from randomly occurring phantom touches, seemingly without a trigger. Sometimes, immediately after I turn my screen on, digitizer starts going nuts and registers hundreds of touches everywhere, often to the point of crashing the system. I have tried to ensure better grounding by applying graphite to the battery cover contacts, but the issue got fixed only temporarily. Wiping the whole screen, bottom to top, with my skin stops the issue. I'm currently running a 4.1.2 Pacman 1.2a Android on an European HD2. Thanks for any kind of help or advice.

I have seen this issue on a phone with a very dirty screen but I think this is not your problem. Did you ever try another ROM/OS? Maybe it's a driver problem.
1st January 2013, 10:49 PM   |  #3  
bib*oops's Avatar
Senior Member
Thanks Meter: 122
 
1,388 posts
Join Date:Joined: Oct 2009
More
If you have some sort of protective case, try to remove it and see what happens.
Otherwise, i suspect a defective touchscreen/digitizer.
13th February 2013, 03:33 AM   |  #4  
Junior Member
Thanks Meter: 0
 
4 posts
Join Date:Joined: Feb 2012
Quote:
Originally Posted by Phantoml337

Hi, I've been suffering from randomly occurring phantom touches, seemingly without a trigger. Sometimes, immediately after I turn my screen on, digitizer starts going nuts and registers hundreds of touches everywhere, often to the point of crashing the system. I have tried to ensure better grounding by applying graphite to the battery cover contacts, but the issue got fixed only temporarily. Wiping the whole screen, bottom to top, with my skin stops the issue. I'm currently running a 4.1.2 Pacman 1.2a Android on an European HD2. Thanks for any kind of help or advice.

I had the same problem in may Galaxy S i9000. I went back to stock rom and that fixed the problem. Most likely it is due to a problem in the driver.
13th February 2013, 04:13 AM   |  #5  
shanman-2's Avatar
Senior Member
Flag Cork
Thanks Meter: 147
 
604 posts
Join Date:Joined: Nov 2011
Re: [Q] HD2 Phantom touches crisis
I have read that the power button can possibly cause such issues. The digitizer cable runs very close to it and can get damaged after prolonged use.
Try quickly flicking the power button the next time it happens!



Sent from my NexusHD2 using xda premium
13th February 2013, 09:20 PM   |  #6  
OP Member
Thanks Meter: 0
 
66 posts
Join Date:Joined: Feb 2010
Donate to Me
More
Well, I've installed several systems and it still persists. At least now I know it's hardware related.
14th February 2013, 12:35 AM   |  #7  
Unscrewed's Avatar
Senior Member
Thanks Meter: 23
 
117 posts
Join Date:Joined: Aug 2012
Quote:
Originally Posted by Phantoml337

Well, I've installed several systems and it still persists. At least now I know it's hardware related.

Is your screen or finger wet? Try cleaning your screen by rubbing it dry on your clothes and rub you fingers dry on your clothes too (the friction will make your fingers dry).

My HD2 freaks out and registers touches everywhere even if there is a little drip of sweat on it. ;p
24th February 2013, 04:27 PM   |  #8  
OP Member
Thanks Meter: 0
 
66 posts
Join Date:Joined: Feb 2010
Donate to Me
More
Info 2
About a week ago I've found out that the issue completely disappears after I remove the battery cover. I've tried replicating the results in long-term scale with 100% success! It's definitely a touchscreen grounding issue.
Last edited by Phantoml337; 2nd March 2013 at 04:24 PM.
26th March 2013, 12:17 PM   |  #9  
OP Member
Thanks Meter: 0
 
66 posts
Join Date:Joined: Feb 2010
Donate to Me
More
Lightbulb
I have completely (so far at least..) fixed the issue by putting a square piece of duct-tape over the right (with the phone flipped over) grounding pin next to the battery.
Last edited by Phantoml337; 26th March 2013 at 06:29 PM.

Post Reply Subscribe to Thread

Tags
hd2 phantom touches grounding issue
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes